Method of preparing spherical moldings
US5792406A · kind A · utility
5Cited by
2References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 3, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | May 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7734
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method which makes it possible to simultaneously injection-mold a number of spherical moldings without causing increase of runner loss, and is a method of preparing spherical moldings by coupling molding forming parts with each other through a bridge of 0.1 to 10 mm.sup.2 in sectional area for feeding molten resin, arranging a structure in which a plurality of molding forming parts are coupled with each other through the aforementioned bridge with respect to one gate, and performing molding, thereby obtaining a sphere series in which a plurality of spherical moldings are coupled with each other through a bridge part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.